Method of treating molten metals



Oct. 2 1923.

C. VOS

METHOD OF TREATING MOLTEN METALS Filed Oct. e. 1920 Www Patented Oct. 2,21923,

CALVI' N VO, NEW YORK, N. Y.

'METHon ormnmrme moLrEN METALS.

" Application filed October e, 1920; Serial m 414347. v

To al lbhm it may Be 'it known that I, CALVIN Vos, a citizen of the United States, residing at *New York city, in the County' of New York and State formed into solid bodies into -a mass *of molten of NewYork, have invented -certain new and useful Improvemnts-in -Methods of Treatiig' Molt en Metals, of which the following .SV a specification.

This invention relates toa new adnovel method of introducing' metallic alloys steel and the fe' 'rrous groupsof molten metal contained within a suitable melti'g furnace by manually operated means, for'the purpose of producing a high grade product from which the last' Vestige of oxides, gases,

etc., 'have been eliminated, thereby formng a more dense and homogeneous product possessing unusual tersile' strength and density. The main object of this invention is to provide a simple, economical and eflicient method of feeding metallic alloys into a mass of hot molten metal beneath the slag,

so that the alloy will be-readily diss olved, 25.

absorbed and assimilated by the molten metal throughout its mass, thereby producing a high grade product of special value in structural work, for castings of various kinds and for numerous other desirabl'e purposes. i

or this purpose my inventionconsists in a novel method and in novel parts and 'combination of' parts in carrying such method 'into efl'eet', as I will" now proceed to describe, and to particularly poi'nt outin the claims appended hereto.

- 'It is understood to be quite common ;in this art to treatmetal, especially iron and steel, in the molten condition by adding thereto certain alloys or reagents, but the manner of doing -it has been oftentimes wasteful -or dicult to carry into efiect In my invention the treatment and slight .i agitation 'of the hot molten metal occur simultaneously and takes place without loss of metal or the treating elements. Thedesired results can therefore be obtained with the utmost precision and unifomity "in the product obtained and successive heats or castin s is insured.` In order to accomplish this form a mold or compact the ingredients constituti ng my metallic Ially with which the molten metal .is to' be trated into solid bodies of any, suitable or desirable dimensions, prefiertblg cylindrical "or cone, shape contour, prov ed with a central longitudinal openin l formed therethrough, said opening beng of' slightly greater area at one end than at the other, i

and gradually tapering from one end to the other, 'whch opening is adapted for the 7 reception of a "suitable tool for the purpose of properly manipulating and handling the solid metallic bodies in the anner hereinafter described. N

F or-ca'rrying out my invention and effecting the results stated, I have illustrated in the accompanying drawin sone form by which 'the solid body of meta lic `alloy is fed int'o the molten metal within a' suitable furnace* beneath i the slag A which usually forms' on the surface of the molten metal.

It will, however, be "understood that my in-' vention is .not 'limited to any specific form -of tool for handling and manipulating the solid body of alloy, since any desirable form of tool may be 'employed, so long' as the solid alloy s rigidly secured 'to the tool and is properly fed and Suspended within the 'molten mass of metal as a dissolving body fo the purpose' herein stated.

seen that: V

Figure 1 isa vertical section of a suitable melting furnace, showing a mass of hot mol- By referenceto-,the drawings it will be f ten metal therein, and' a single tool orvcare rier for feeding, suspendin and operati the solid body of'alloy bneath the sl within the molten body of metal, todissolve land assimilate the ingredieits ltherewith. i Figures 2 and 3 show. sectional elevations o vdifl'renflformsof bodies into which the' ingredients of the alloy may be compacted or molded withi a suitable toolfixedly secured thereto, and .e A

Figur-e 4 is a side elevation of the tool removed from the solid metallic-alloy.

The ingredients comprising' my, metallic alloy 1, having-been properly mixed in plas,- tic' condition, are molded or compao'ted in i any suitable size, and preerably-in c ylin-' drcal or conical cont'our, provided .with a'.

central longitudinal and slightly tapering i o'rifice 2, extending entirelytherethrough, adapted to receive the outer end portion 3 of a suitable tool 4, provided at' one end with. a handle 5. i

It will'be readily 'perceived that when it is desired to feed or qharge the solid alloy .within the molten mass of metal 6 withn thefurnace 7 and beneath .the slag 8, it. is i simply necessary :to insert the oter end 3 of the tool 4: into the orifice 2 forned within the alloy', and wedge the solid alloy around the end of the tool by striking the outer edge of the body of alloy, one or more sharp blows with a hammer or other convenient tool sufiiciently to cause the said alloy body to become wedged and fixedly Secured to the end of the tool,`when it is conveyed by manual labor to an opening 9,

formed in one of the walls of the furnace, thence passed through said opening and. through and benea'th the slag within the furnaceand into the hot molten mass of metal when the coaction of the hot metal with the cool metallic alloy Will cause a pulsation or slight vibrat-ion of the alloy and tool, thus causing a slight agitation of the ment of molten metal in the proportions re quired for such treatment, sai-d alloy being specifically described and claimed in a .sep-

372956@ and having means whereby it can be properly fed or charged into the molten mass so that its entire surface is exposed to'the dissolving action of the molten metal.

The treatment of the molten steel and the ferrous groups of metal in the manner and by the means heren'stated is admir'ably adapted for use in degasifying and deoxidize ing said molten metal, resulting in the 'production of a` high grade product, since the metallic alloy is thereby uniformly mixed and assimlated with the metal producing the desired e'ect and giving it an unusual homogeneous character and teusile strength.

Having thus described `my inventionfwhat li claim and desire to secure by Letters Patent. is

The method herein described of treating molten met-al with suitable alloys within a tui-hace, consisting in forming 'the elloys into a cylindrical body with a central tapered opening therein, fixedly wedging a suitable' tool said alloy into the molten metal below the surface of the metal and supporting it therein by means of said tool until the alloy is entirely dissolved, 'and finally withdrewing the tool from the furnece.

GALVIN VOS.

'155 in said opening, submerging 4 

